By assimilation we mean a modification in the articulation of a consonant under the influence of a neighbouring consonant.
Two adjacent consonants within a word or at word boundaries often influence each other in such a way that the articulation of one sound becomes similar to or even identical with the articulation of the other one. This phenomenon is called assimilation
In assimilation the consonant whose articulation is modified under the influence of a neighbouring consonant is called the assimilated sound
Consonant which influenzas by the neighbouring consonant is called the assimilating sound.
